The key is that the request rate be independent of the latency of individual requests. In the case of wrk (the original wrk, not Gil Tene's version), you could

The key is that the request rate be independent of the latency of individual requests. In the case of wrk (the original wrk, not Gil Tene's version), you could use this version to check for maximum RPS / bandwidth. This is because it's sending requests as fast as it can, but one after the other. In the case of wrk2, Gil Tene's version, you have to specify the rate at which to send requests. This is how it avoids coordinated omission.